Go to the "AMIs" area in the console.
We are going to launch ami-92d926fb858741ec. Filter by "Public Images" and "CentOS" using the drop-downs, type "ami-92d926fb858741ec" into the text box and hit 'Refresh'. It may take a few seconds to give you a list.
Select the one called "405596411149/centos-5.6-x86_64-pegasus-cloud-tutorial-2" and click "Launch".
A launch wizard will pop up.
Select the number of instances (1), and instance type (m1.large), then "Continue".
On the "Advanced Instance Options" page add the following to "User Data" and hit "Continue" (note: host.example.com should be replaced with your submit host):